SPECTROSCOPY OF THE STELLAR WIND IN THE CYGNUS X-1 SYSTEM
| dc.contributor.author | Miskovicova, I. | |
| dc.contributor.author | Hanke, M. | |
| dc.contributor.author | Wilms, J. | |
| dc.contributor.author | Nowak, M. A. | |
| dc.contributor.author | Pottschmidt, Katja | |
| dc.contributor.author | Schulz, N. S. | |
| dc.date.accessioned | 2023-09-26T18:51:21Z | |
| dc.date.available | 2023-09-26T18:51:21Z | |
| dc.date.issued | 2011-01-01 | |
| dc.description.abstract | The X-ray luminosity of black holes is produced through the accretion of material from their companion stars. Depending on the mass of the donor star, accretion of the material falling onto the black hole through the inner Lagrange point of the system or accretion by the strong stellar wind can occur. Cygnus X-1 is a high mass X-ray binary system, where the black hole is powered by accretion of the stellar wind of its supergiant companion star HDE226868. As the companion is close to filling its Roche lobe, the wind is not symmetric, but strongly focused towards the black hole. Chandra-HETGS observations allow for an investigation of this focused stellar wind, which is essential to understand the physics of the accretion flow. We compare observations at the distinct orbital phases of 0.0, 0.2, 0.5 and 0.75. These correspond to different lines of sight towards the source, allowing us to probe the structure and the dynamics of the wind. | en_US |
| dc.description.sponsorship | The research leading to these results was funded by the European Community’s Seventh Framework Programme (FP7/2007-2013) under grant agreement number ITN 215212 “Black Hole Universe” and by the Bundesministerium f ̈ur Wirtschaft und Technologie under grant number DLR 50 OR 0701. | en_US |
| dc.description.uri | https://ojs.cvut.cz/ojs/index.php/ap/article/view/1332 | en_US |
| dc.format.extent | 5 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2slty-kqs7 | |
| dc.identifier.citation | Miškovičová, I., M. Hanke, J. Wilms, M. A. Nowak, K. Pottschmidt, and N. S. Schulz. “Spectroscopy of the Stellar Wind in the Cygnus X-1 System.” Acta Polytechnica 51, no. 1 (January 1, 2011). https://doi.org/10.14311/1332. | en_US |
| dc.identifier.uri | https://doi.org/10.14311/1332 | |
| dc.identifier.uri | http://hdl.handle.net/11603/29876 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Czech Technical University in Prague | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology | |
| dc.relation.ispartof | UMBC Physics Department | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | en_US |
| dc.rights | Attribution 4.0 International (CC BY 4.0) | * |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | * |
| dc.title | SPECTROSCOPY OF THE STELLAR WIND IN THE CYGNUS X-1 SYSTEM | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0002-4656-6881 | en_US |